Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
100012excellentexcellent21excellent
090015goodexcellent31excellent
080022goodexcellent31excellent
070026goodexcellent41excellent
060026goodexcellent41excellent
050027goodexcellent41excellent
040021goodexcellent41excellent
030031goodexcellent51excellent
020032goodexcellent61excellent
010029goodexcellent61excellent
000043lightly pollutedexcellent61excellent
230034goodexcellent61excellent
220035goodexcellent61excellent
210031goodexcellent51excellent
200028goodexcellent51excellent
190033goodexcellent51excellent
180025goodexcellent41excellent
170019goodexcellent31excellent
160015goodexcellent21excellent
150014goodexcellent11excellent
14009excellentexcellent11excellent
130025goodexcellent41excellent
120033goodexcellent51excellent
110031goodexcellent71excellent